function Page(iAbsolute,sTableId,sTBodyId,page) 
	{ 
this.absolute = iAbsolute; //每页最大记录数 
this.tableId = sTableId; 
this.tBodyId = sTBodyId; 
this.rowCount = 0;//记录数 
this.pageCount = 0;//页数 
this.pageIndex = 0;//页索引 
this.__oTable__ = null;//表格引用 
this.__oTBody__ = null;//要分页内容 
this.__dataRows__ = 0;//记录行引用 
this.__oldTBody__ = null; 
this.__init__(); //初始化; 
}; 
/**//* 
初始化 
*/ 
Page.prototype.__init__ = function(){ 
this.__oTable__ = document.getElementById(this.tableId);//获取table引用 
this.__oTBody__ = this.__oTable__.tBodies[this.tBodyId];//获取tBody引用 
this.__dataRows__ = this.__oTBody__.rows; 
this.rowCount = this.__dataRows__.length; 
try{ 
	this.absolute = (this.absolute <= 0) || (this.absolute>this.rowCount) ? this.rowCount : this.absolute; 
	this.pageCount = parseInt(this.rowCount%this.absolute == 0 
		? this.rowCount/this.absolute : this.rowCount/this.absolute+1); 
}catch(exception){} 
this.__updateTableRows__(); 
}; 
Page.prototype.GetBar=function(obj) 
{ 
	var bar= document.getElementById(obj.id); 
bar.innerHTML= "每页"+this.absolute+"条/共"+this.rowCount+"条";// 第2页/共6页 首页 上一页 1 2 3 4 5 6 下一页 末页 
} 
/**//* 
下一页 
*/ 
Page.prototype.nextPage = function(){ 
	if(this.pageIndex + 1 < this.pageCount){ 
		this.pageIndex += 1; 
		this.__updateTableRows__(); 
	} 
}; 
/**//* 
上一页 
*/ 
Page.prototype.prePage = function(){ 
	if(this.pageIndex >= 1){ 
		this.pageIndex -= 1; 
		this.__updateTableRows__(); 
	} 
}; 
/**//* 
首页 
*/ 
Page.prototype.firstPage = function(){ 
	if(this.pageIndex != 0){ 
		this.pageIndex = 0; 
		this.__updateTableRows__(); 
	} 
}; 
/**//* 
尾页 
*/ 
Page.prototype.lastPage = function(){ 
	if(this.pageIndex+1 != this.pageCount){ 
		this.pageIndex = this.pageCount - 1; 
		this.__updateTableRows__(); 
	} 
}; 
/**//* 
页定位方法 
*/ 
Page.prototype.aimPage = function(){ 
	var abc = document.getElementById("pageno"); 
	var iPageIndex = abc.value; 
	var iPageIndex = iPageIndex*1; 
	if(iPageIndex > this.pageCount-1){ 
		this.pageIndex = this.pageCount -1; 
	}else if(iPageIndex < 0){ 
		this.pageIndex = 0; 
	}else{ 
		this.pageIndex = iPageIndex-1; 
	} 
	this.__updateTableRows__(); 
}; 
/**//* 
执行分页时，更新显示表格内容 
*/ 
Page.prototype.__updateTableRows__ = function(){ 
	var iCurrentRowCount = this.absolute * this.pageIndex; 
	var iMoreRow = this.absolute+iCurrentRowCount > this.rowCount ? this.absolute+iCurrentRowCount - this.rowCount : 0; 
	var tempRows = this.__cloneRows__(); 
	var removedTBody = this.__oTable__.removeChild(this.__oTBody__); 
	var newTBody = document.createElement("TBODY"); 
	newTBody.setAttribute("id", this.tBodyId); 
	for(var i=iCurrentRowCount; i < this.absolute+iCurrentRowCount-iMoreRow; i++){ 
		newTBody.appendChild(tempRows[i]); 
	} 
	this.__oTable__.appendChild(newTBody); 
	this.__dataRows__ = tempRows; 
	this.__oTBody__ = newTBody; 
//页脚显示分 
var divFood = document.getElementById("divFood");//分页工具栏 
divFood.innerHTML=""; 
var rightBar = document.createElement("divFood"); 
rightBar.setAttribute("display",""); 
rightBar.setAttribute("float","left"); 
rightBar.innerHTML="当前&nbsp;"+(this.pageIndex+1)+"/"+this.pageCount+"页"; 
var isOK="Y"; 
var cssColor=""; 
divFood.appendChild(rightBar); 
////页脚显示分页结 
}; 
/**//* 
克隆原始操作行集合 
*/ 
Page.prototype.__cloneRows__ = function(){ 
	var tempRows = []; 
	for(var i=0; i<this.__dataRows__.length; i++){ 
		tempRows[i] = this.__dataRows__[i].cloneNode(1); 
	} 
	return tempRows; 
};